US11318253B2 - Dart syringe projectile - Google Patents
Dart syringe projectile Download PDFInfo
- Publication number
- US11318253B2 US11318253B2 US16/116,622 US201816116622A US11318253B2 US 11318253 B2 US11318253 B2 US 11318253B2 US 201816116622 A US201816116622 A US 201816116622A US 11318253 B2 US11318253 B2 US 11318253B2
- Authority
- US
- United States
- Prior art keywords
- syringe
- dart
- needle
- plunger
- projectile
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active, expires
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
- A61M5/2046—Media being expelled from injector by gas generation, e.g. explosive charge
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
- A61D7/00—Devices or methods for introducing solid, liquid, or gaseous remedies or other materials into or onto the bodies of animals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
- F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
- F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
- F42B12/46—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing gases, vapours, powders or chemically-reactive substances
- F42B12/54—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing gases, vapours, powders or chemically-reactive substances by implantation, e.g. hypodermic projectiles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
- A61D7/00—Devices or methods for introducing solid, liquid, or gaseous remedies or other materials into or onto the bodies of animals
- A61D7/04—Devices for anaesthetising animals by gases or vapours; Inhaling devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
- A61M2005/2006—Having specific accessories
- A61M2005/2013—Having specific accessories triggering of discharging means by contact of injector with patient body
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
- F41B11/00—Compressed-gas guns, e.g. air guns; Steam guns
- F41B11/80—Compressed-gas guns, e.g. air guns; Steam guns specially adapted for particular purposes
- F41B11/85—Compressed-gas guns, e.g. air guns; Steam guns specially adapted for particular purposes for launching hypodermic projectiles
Definitions
- the present invention relates generally to syringe devices; and in particular to projectile syringes used to inject tranquilizing or medicinal substances into animals.
- Syringes are often used to administer liquid substances, e.g., tranquilizers and medications, to human and animal subjects.
- liquid substances e.g., tranquilizers and medications
- animals In such fields as veterinary medicine, animal husbandry, livestock handling and wildlife management, domestic and wild animals are treated with various substances for a wide variety of conditions and objectives.
- Projectile syringes or darts enable substances to be administered remotely.
- a veterinarian, or some other individual responsible for administering substances to animals may prefer to maintain a safe distance from the subject animals.
- Some examples of prior art include Waldeisen U.S. Pat. No. 4,717,384 and Soars U.S. Pat. No. 9,234,729.
- Those inventions incorporate the use of completely hollow needles that discharge out of the needle tip. This direction of discharge can cause the administered fluid to propel the syringe backward and out of the animal, resulting in incomplete administration.
- Another weakness of the hollow needle can occur when travel through the air forces air into the dart body, which can dispel a portion of the medication through an increase in air pressure, resulting in a reduction of the intended medication dosage.
- the invention is a syringe projectile with side discharge needle ports and a firing actuator.
- FIG. 1 is a rear perspective view of a dart syringe projectile embodying an aspect of the present invention
- FIG. 2 is a side elevational view thereof
- FIG. 3 is a longitudinal, cross-sectional view thereof, taken generally along line 3 - 3 in FIG. 2 ;
- FIG. 4 is an enlarged, fragmentary, cross-sectional view thereof, taken generally in circle 4 in FIG. 3 , and particularly showing the needle tip;
- FIG. 5 shows an alternative embodiment of the invention in a rear, perspective view
- FIG. 6 is a side elevational view thereof
- FIG. 7 is a cross-sectional view thereof, taken generally along line 7 - 7 in FIG. 6 ;
- FIG. 8 is an enlarged, fragmentary, cross-sectional view thereof, taken generally in circle 8 in FIG. 7 , and particularly showing the needle tip;
- FIG. 9 shows another alternative embodiment of the invention in a rear, perspective view
- FIG. 10 is a side elevational view thereof.
- FIG. 11 is a longitudinal, cross-sectional view thereof, taken generally along line 11 - 11 in FIG. 10 .
- a dart syringe projectile 2 embodying an aspect of the present invention includes a generally tubular body 4 mounting a needle assembly 6 at a body front end 8 and a tail assembly 10 at a body back end 12 .
- the needle assembly 6 includes a needle hub 7 mounting a needle 30 projecting forwardly from the hub 7 to a needle tip 31 .
- a needle cannula 33 opens to side discharge ports 32 positioned in spaced relation behind the needle tip 31 .
- An annular septum ring 36 is embedded in the plunger 26 and is retained therein by heat-welding connecting ears, thus securing the septum ring 36 to the plunger 26 .
- a substance loading passage 38 extends from a front end of the needle hub 7 to the septum ring 36 and receives a hypodermic needle of a syringe with a substance, which can be injected into the reservoir cavity 28 via the septum ring 36 .
- the septum ring 36 preferably comprises a soft, self-sealing rubber material to facilitate loading the reservoir cavity 28 with the substance.
- the tail assembly 10 can include radially projecting fins 14 and a generally conical, rearmost base 16 .
- a striker 18 is biased rearwardly by a spring 20 .
- the striker 18 plunges forwardly against the spring 20 and strikes a percussion cap 22 , which ignites a gunpowder charge 24 for propelling a plunger 26 forward to discharge the substance contents from the reservoir cavity 28 via discharge ports 32 in the needle 6 when the projectile strikes a subject, such as an animal.
- the substance is preferably in liquid form and can comprise a medication, a tranquilizer, a vaccine or any other type of substance intended for direct injection into the subject.
- the plunger 26 includes annular front, middle and rear flanges 27 a , 27 b and 27 c , which form sealing connections with a body bore 5 whereby the explosive force from the gunpowder charge 24 is effectively expended propelling the plunger 26 forwardly through the reservoir cavity 28 .
- the triple-barrier construction with the flanges 27 a , 27 b and 27 c eliminates or at least minimizes gunpowder residue mixing with substances in the reservoir cavity 28 .
- the projectile 2 is preferably loaded into a pneumatic gun, which enables an operator, such as a veterinarian or a livestock handler, to administer a substance from a safe distance.
- the subject animal can be contained in an enclosure, or unconstrained.
- the projectile 2 engages the animal, the needle 6 embeds itself in the flesh, the striker 18 continues traveling forwardly under momentum, striking the percussion cap 22 , which discharges the gunpowder charge 24 , propelling the plunger 26 through the reservoir cavity 28 whereby the contents thereof are injected via the needle ports 30 .
- FIGS. 5-8 show a second alternative embodiment or aspect dart syringe projectile 42 .
- the projectile 42 includes an elongated body 44 with a correspondingly elongated reservoir cavity 46 for containing a substance.
- FIGS. 9-11 show a third alternative embodiment or aspect dart syringe projectile 52 with a modified tail assembly 54 accommodating a more compact projectile 52 , as compared to the projectiles 2 , 42 .
- the projectiles embodying the present invention are scalable. For example, dosages can be controlled by using different sizes of pneumatic darts, essentially to control the volume of the reservoir cavity particular to a dart.
- the embodiments featured herein represent a smaller and a larger size, but the projectiles can be virtually any size.
- the projectiles are configured for preloading with single dosages and can be discarded after a single use.
- the projectiles can be configured for reloading and reuse.
Abstract
Description
Claims (16)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/116,622 US11318253B2 (en) | 2017-08-29 | 2018-08-29 | Dart syringe projectile |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201762551656P | 2017-08-29 | 2017-08-29 | |
US16/116,622 US11318253B2 (en) | 2017-08-29 | 2018-08-29 | Dart syringe projectile |
Publications (2)
Publication Number | Publication Date |
---|---|
US20190060570A1 US20190060570A1 (en) | 2019-02-28 |
US11318253B2 true US11318253B2 (en) | 2022-05-03 |
Family
ID=65434687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/116,622 Active 2041-03-04 US11318253B2 (en) | 2017-08-29 | 2018-08-29 | Dart syringe projectile |
Country Status (1)
Country | Link |
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US (1) | US11318253B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111076624B (en) * | 2019-11-20 | 2022-04-15 | 南京理工大学 | Modular injection bullet with replaceable medicine tube |
DK202270009A1 (en) | 2022-01-11 | 2023-11-02 | Dan Inject Aps | A needle for injection of an object into an animal body, a dart for cooperation with a needle and a system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3715990A (en) * | 1971-05-21 | 1973-02-13 | Palmer Chem And Equip Co Inc | Liquid or powder dispensing dart |
US4717384A (en) | 1987-01-15 | 1988-01-05 | Pneu Dart Inc. | Pneumatic hypodermic syringe pole |
US5730723A (en) * | 1995-10-10 | 1998-03-24 | Visionary Medical Products Corporation, Inc. | Gas pressured needle-less injection device and method |
US20150352285A1 (en) * | 2014-06-05 | 2015-12-10 | Pneu-Dart , Inc. | Injection dart |
-
2018
- 2018-08-29 US US16/116,622 patent/US11318253B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3715990A (en) * | 1971-05-21 | 1973-02-13 | Palmer Chem And Equip Co Inc | Liquid or powder dispensing dart |
US4717384A (en) | 1987-01-15 | 1988-01-05 | Pneu Dart Inc. | Pneumatic hypodermic syringe pole |
US5730723A (en) * | 1995-10-10 | 1998-03-24 | Visionary Medical Products Corporation, Inc. | Gas pressured needle-less injection device and method |
US20150352285A1 (en) * | 2014-06-05 | 2015-12-10 | Pneu-Dart , Inc. | Injection dart |
US9234729B2 (en) | 2014-06-05 | 2016-01-12 | Pneu-Dart, Inc. | Injection dart |
Also Published As
Publication number | Publication date |
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US20190060570A1 (en) | 2019-02-28 |
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